What are the responsibilities and job description for the Portfolio Manager – Equity Stat Arb & Auction Strategies position at Onyx Alpha Partners?
Portfolio Manager – Equity Stat Arb & Auction Strategies
Location: New York or London | Onsite
The Mandate
We are partnering with a high-growth multi-strategy platform that has rapidly established itself as a global force since its launch. Entering its next major phase of expansion, the firm is offering a rare "founder-level" seat for a specialist to build and own the Equity Auctions & Intraday Stat Arb business.
This is not a cog-in-the-wheel role. We are specifically targeting high-caliber Quantitative Researchers or PMs from established prop trading firms or quant funds who have successfully scaled auction strategies and are ready to bypass the "senior researcher" ceiling to become a full PnL owner.
Why This Seat
- Business Ownership: You are not just running a model; you are the architect of a central strategy vertical. You will define the risk models, the research agenda, and the execution logic.
- QR-to-PM Transition: This firm specifically values the rigor of top-tier QRs. If you have generated the alpha but lacked the attribution or autonomy, this is your platform to monetize your IP.
- Greenfield Tech: Trade on brand-new, state-of-the-art infrastructure unencumbered by decades of legacy code. The rails are built for speed, capacity, and modern microstructure research.
- Payout Structure: A transparent, formulaic payout of 20% of PnL, offering unlimited upside for scalable strategies.
What You’ll Do
- Launch the Business: distinct mandate to deploy capital into Opening/Closing Auctions (MOO/MOC), imbalance strategies, and short-horizon statistical arbitrage.
- Scale Capacity: leverage the firm's balance sheet to scale strategies that have previously been constrained by desk limits or risk-aversion at incumbent firms.
- Direct the Cycle: Own the full loop—from microstructure feature engineering (L2/L3 data) to post-trade impact analysis. You decide where the compute resources go.
- Build a Team: As the strategy scales, you will have the mandate to hire researchers and developers to support your book.
What You Bring
- The Track Record: Proven success scaling Auction/Close strategies or Intraday Stat Arb. We are looking for candidates who can point to specific attribution: "I built the model that generated $XXXm in PnL."
- The Background: Current QR, Sub-PM, or Desk Head at a top-tier Prop Shop or Quant Fund.
- The Edge: Deep empirical mastery of order book dynamics, exchange matching engines, hidden liquidity, and seasonal volume profiles.
- The Mindset: You are tired of "handing off" your alpha. You want the accountability and the payout that comes with holding the risk.
Compensation
- Benefits: 20% Formulaic Payout on PnL first year guarantee team budget.
- Base Salary: $250k - $350k (indicative range; flexible for the right profile).
- Non-compete: 15month preferred (flexible for exceptional IP).
Apply Now
At Onyx Alpha Partners, we are committed to connecting the most sought after talent in the financial world, to opportunities that expand the universe of unconstrained performance within their chosen discipline. If this opportunity aligns with your career aspirations, we encourage you to apply and explore the potential for growth and unparalleled success.
Salary : $200,000 - $300,000